How should radiotherapy for esophageal cancer be carried out? Esophageal cancer is a kind of malignant tumor with high incidence in our country, and radiotherapy is an important method for treating esophageal cancer. 1. Neoadjuvant chemotherapy: for radiotherapy-sensitive tumors, the tumor of esophageal cancer is large before treatment, and there is difficulty in radiation field setting, or due to the specific situation of esophageal cancer patients, the tumor can not be too large. Or considering that there is still the possibility of spreading beyond the local scope, several courses or one course of chemotherapy can be used first, and then radiotherapy can be used after the mass has obviously regressed. 2.Radiation sensitization: After chemotherapy drugs act on esophageal cancer tumor cells, they can affect the cellular dynamics of tumor tissues, and some of them can affect the molecular biology of tumor cells, which can provide favorable conditions for concurrent radiation therapy to play a greater role in killing the tumor cells, and chemotherapeutic drugs play the role of sensitizers. 3.Comprehensive radiotherapy: some esophageal cancer patients are diagnosed at a late stage, and the tumor is not limited to the local area, but also has distant dissemination. It is difficult to take care of all of them by radiotherapy alone; chemotherapy alone can not control some local problems well. At this time, planned radiotherapy and chemotherapy should be carried out, and careful arrangements should be made to improve the efficacy of treatment. In conclusion, the simultaneous use of radiotherapy and chemotherapy can improve the therapeutic effect of esophageal cancer patients, and the combination of radiotherapy and chemotherapy can not only effectively reduce the tumor, but also reduce the pain, and at the same time, better the treatment of esophageal cancer.